[Elecraft] high-power tuner

[Tony Estep]

On Fri, Mar 9, 2012 at 4:24 PM, WILLIS COOKE <wrcooke at yahoo.com> wrote:
> I wonder how those that claim a certain efficiency for a MFJ-998 or any other antenna matching device are measuring the output power....
============
Cookie, the ARRL labs have some way of doing this, but in their
reviews of tuners they don't explain how they do it. I suppose they
have some scheme for measuring what goes in and what comes out, but
they don't say. However, as I mentioned in a previous post, the MFJ
994 tuner they tested (August 2006) had somewhat lower losses than the
other similar tuners in the review. I could not find any published
data to support the assertion that MFJ tuners have high losses.

Tony KT0NY



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